Webster's Third New International Dictionary (Unabridged) gives the
applicable definition of "notice" as "a written or printed
announcement or bulletin." The same source defines "circular" as "an
announcement, advertisement, or directive typically in the form of a
printed leaflet intended to be sent to many persons or otherwise
Here are five differences between a circular and a notice.
1. Typically you would print very few copies of a notice (possibly
only one), but you might print thousands of copies of a circular.
2. A notice is usually posted on a wall or similar fixed structure,
while a circular is designed to be distributed in various locations,
3. A notice is generally intended to be read by many people; each
circular is likely to be read by one person: a circular goes to
people, but people come to a notice.
4. Since a notice is designed to be read by groups of people, it is
likely to be printed in a larger typeface so that it can be read at a
distance; a circular can be printed in small type, since it will be
hand-held by individuals.
5. A notice is more likely to have legal standing than a circular,
since it is difficult to prove that circulars have reached their
target audience, while a notice that is prominently posted may be
assumed to have been read by the public.
I hope this helps!